Cell Energy and Respiration M1V4

Question 1

Energy Generation

Answer 1

This process is called respiration

Question 2

Where does Respiration occur in the cell

Answer 2

1. In the cytosol via glycolysis
2. in the mitochondria via the citric acid cycle
3. In mitochondrial membranes via oxidative phosphorylation

Question 3

Mitochondria size

Answer 3

around 10 microns long

Question 4

Mitochondria facts

Answer 4

1. High energy cells = lots of mitochondria
2. Mitochondria used to be organisms! They have their own DNA and ribosomes, and they can move, fuse, divide and change shape independent of the cell

Question 5

Mitochondria structure

Answer 5

Two bilayered membranes

1. inner membrane has folds (cristae)
2. space between cristae is called the matrix
3. space between membranes is called intermembrane space

Question 6

ATP

Answer 6

• Molecule known as adenosine triphosphate
• “carries energy”
• used at an enormous rate

Question 7

How do you turn ADP to ATP

Answer 7

Turning adenosine diphosphate (ADP) into ATP (phosphorylation) requires energy (from food, transport ect)

Question 8

What happens when you break down ATP to ADP

Answer 8

Breaking ATP down to ADP releases energy (used to power cellular functions)